MAZDA 6 MOTORIZED MONITOR-VGA PORT-CAN CONNECT CARPC need help powering it up at home

i have purchased this screen, which I would like to power it up at home but i need to know where to provide the current to from the 12v car battery that is laying around at home.
here is the exact one i bought :

How well did the unit perform?

Hi, I know it's been ages since you opened the tread but, I was about to buy the same unit as this and wanted to ask how you would rate it. Part of me thinks that it's likely to be cheap and nasty and since it's comming from japan it's going to be almost impossible to return it if it's of noo use.

If you managed to get it in your mazda how well did it perform? was the screen very sensitive? and most importantly does it still work?